Demountable baffle structure for



Oct. 4-, 1949. E., H. RYDEN 2,433,476

DEMOUNTABLE BAFFLE STRUCTURE FOR 7 FURNACE COMBUSTION CHAMBERS Filed Mays, 194? Ema h. RmE/v Patented Oct. 4, 1949 DEMOUNTABLE BAFFLE STRUCTUREFOR FURNACE COMBUSTION CHAMBERS Eric H. Ryden, Elyria, Ohio, assignor toThe C. A.

Olsen Manufacturing Company, Elyria,

corporation of Ohio Ohio, a

Application May 3, 1947, Serial No. 745,795

4 Claims.

This invention relates to furnaces of the type characterized by anupright heating element providing or served by a combustion chamber andserving as a heat exchanger, as for example in the usual warm airfurnace employed in domestic heating services.

More particularly, the invention has to do with bafile means for thefurnace combustion chamber, and removable mounting of such bafiie meansin the front opening which provides the usual lateral access to thechamber, as for ignition, inspection, and cleaning.

Objects of the invention are to provide simple and inexpensive bafiiemeans and mounting means therefor, the bafiie means being of amplestrength with light weight, and its mounting means providing simpleinstallation and removal, yet positively positioning the baflle meanswhen installed, and substantially Without obstructing the opening.

Further objects and advantages will be apparent from the followingdescription taken in connection with the accompanying drawings whichshow bafile means and mounting means therefor as applied to a typicalwarm air furnace, pertinent parts of which appear in the drawings,

Fig. 1 being a sectional elevation showing the bafiie means asinstalled,

Fig. 2 is a horizontal section through the same as in the plane of line2-2, Fig. 1, looking upwardly, and

Figs. 3 and 4 are detail sections as in the plane of line l-S, i3, Figs.1 and 2, viewed respectively right and left.

With reference now to the drawings, I represents the furnace heatingelement, here indicated as of sheet metal in the form of an uprightcylinder, providing a chamber A which may be a combustion chamber orconfine products of combustion provided by a suitable burner meanstherebelow and not illustrated, being well known in the art, as forexample the usual pot type oil burner.

The heating element 1 is provided with a lateral opening of circularform and having an associated cylindrical collar 2 leading from theopening, as to the front wall of the furnace and there having a flange2a, the arrangement providing access to the chamber A as for ignition Ofthe burner, inspection of its operation, and cleaning.

According to this invention, bafiie means are provided for control ofthe flue products within the chamber A. As here illustrated, the bafflemeans includes a bafile member 3 located within the chamber A, a basemember 4 located within the collar 2, and a neck member 5interconnecting the bafile and base members.

The baffle means is of sheet metal, as of stainless steel, with acentral portion extending integrally throughout its length of arcuatesection and uniform curvature conforming to that of the upper portion ofthe inner face of the collar 2.

The baflie member 3 may include a pair of upwardly extending laterallyspaced Wings 6, to improve its bafiiing efiect and increase itsrigidity, and the neck member 5 supports the baffle member 3 on the basemember 4, its reduced width relative to that of the baffle member 3permitting flow of flue products within the chamber A adjacent the frontportion of the heating element I.

For mounting of the base member 4 of the baiile means within the collar2, for consequent positioning and support of the heme member 3 withinthe chamber A, the collar 2 is provided with a pair of laterally spacedstuds 1 adjacent the heating element l and a third stud 8 adjacent theflange 2a, all three of the studs having slight radial extent into thehollow of the collar 2.

The neck member 5 has lateral edge portions located to be receivedbetween and engaged by the pair of studs i as indicated Figs. 1, 3, and4. Inwardly beyond the studs 1 the neck member 5 has lateral edgeportions divergently related as at 9 to provide cam or wedge effectrelative to the studs 7 as will appear; and outwardly beyond the studsthe base member 4 is provided with shoulders In to act as stops againstthe studs.

The base member is provided with an opening to receive the third stud 8when the parts are positioned as in the drawings, this being the mountedposition of the baflie means.

It will be apparent that the .bafiie means is positively secured when somounted, its base member 4 being positioned by the three studs, and thebaflle part 3 having support therefrom by way of the neck part 5 withcantilever effect, the weight of the bafile means having support by thetwo studs 1 and the baflle means being secured against lateraldisplacement by the third stud 8 acting with the other two.

It will also be apparent that by the disclosed arrangement, the openingthrough the collar 2 is practically unobstructed by either baffle ormounting means.

In mounting the bafile means, the baffle member 3 is inserted throughthe collar opening, then the bafile means is raised to position its neckmember 5 between the studs 1. Thereafter the baffle means is slidinwardly, one or the other of the cam edge portions 9 engaging thecorresponding stud '1 until the parts are seated as indicated in thedrawings, the bafiie means finally being tilted on the studs 1 toprovide seating relation between the stud 8 and its opening in the basemember 4.

Demounting and removal of the bafile means is had by reversal of thesesteps.

Withal, the invention will be seen to provide for easy mounting of thebaffle means in initial installation of the furnace, and as easy removaland replacement on any subsequent occasion, with positive positioningwhenever ,mounted; without materially obstructing the opening throughwhich it is inserted and within which it is mounted.

What I claim is:

1. In a furnace having an upright heating'element providing a combustionchamber, with a circular opening providing lateral access to saidchamber, and a cylindrical collar associated with said opening, sheetmetal bafile means including a bafile member, a base member of arcuatesection to fit within said collar, and a neck member interconnectingsaid baffle and base members, and means for removably mounting said basemember in said collar, to position said bafile member in said chamber,said mounting means including a pair of studs inwardly projecting fromsaid collar adjacent said chamber and spaced to engage therebetweenlateral edge portions of said neck member.

2. In a furnace having an upright heating element providing a combustionchamber, with a circular opening providing lateral access to saidchamber, and a cylindrical collar associated with said opening, sheetmetal bafile means including a bafile member, a base member of arcuatesection to fit within said collar, and a neck member interconnectingsaid bafile and base members, and means for ,removably mounting saidbase member in said collar, to position said baffle member in saidchamber, said mounting means including a pair of studs inwardlyprojecting from said collar adjacent said cham.- ber and spaced toengage therebetween lateral edge portions of said neck member, said neckmember edge portions having divergent relation toward said base memberfor wedge effect between said studs.

3. In a furnace having an upright heating element providing a combustionchamber, with a circular opening providing lateral access to saidchamber, and ,a cylindrical collar associated with said opening, bafllemeans including a baffle member, a base member of arcuate section to fitwithin said collar, and a neck member interconnecting said bafile andbase members, and means for removably mounting said base member in saidcollar, to position said baffle member in said chamber, said mountingmeans including a pair of studs inwardly projecting from said collaradjacent said chamber and spaced to engage therebetween lateral edgeportions of said neck member, said neck member edge portions havingdivergent relation toward said base member for wedge effect between saidstuds, and said mounting means also including a third stud. inwardlyprojecting from said collar remote from said chamber, said base memherhaving ,an opening to receive said third stud.

4. In a furnace having an upright heating element providing a combustionchamber, with a circular opening providing lateral access to saidchamber, and a [cylindrical collar associated with said opening, bafilemeans including a baflle member, a base member of arcuate section to fitwithin said collar, and a neck member interconnecting said bafile andbase members, and means for removably mounting said base member in saidcollar, to position said baflie member in said chamber, said mountingmeans including ,a pair of studs inwardly projecting from said collaradjacent said chamber and spaced to engage therebetween lateral edgepor- REFERENCES CITED The following references are of record in the fileof this patent:

UNITED STATES PATENTS Number Name Date 480,086 Freeman Aug. 2, 1892{739,076 .Grondahl Sept. 15,1903

1,043,941 Keays Nov. 12,1912 1,866,427 Siemer July 5,1932 1,924,274Franz Aug. 29,1933

